Cletrac HG

The Cletrac HG is a tractor produced by Cletrac. It is equipped with a 122.3 ci 2.0 L engine. The rated power output is 25.3 hp 18.9 kW. Transmission: 3 forward and 1 reverse. Drive type: crawler. Operating weight: 3125 to 3496 pounds.

Overview

	1939 - 1951 Agricultural Crawler tractor
1939 - 1951
Agricultural Crawler tractor

Production
Manufacturer	Cletrac (a part of Oliver)
Agricultural Crawler tractor
Built in Cleveland, Ohio, USA
Total built	29,930

Cletrac HG Transmission
3-speed gear
Transmission details ...

Cletrac HG Power
Drawbar (claimed)	22 hp 16.4 kW
Belt (claimed)	16 hp 11.9 kW
Drawbar (tested)	21.3 hp 15.9 kW
Belt (tested)	25.3 hp 18.9 kW
Performance test details ...

Mechanical
Drive	crawler
Open operator station.

Power Take-off (PTO)
Rear PTO Type	540 (1.375)

Dimensions & Tracks
Weight	3125 to 3496 pounds
6-inch tracks
Full dimensions and tracks ...

References
HG - Tru-Traction for the Farmer published in 1941, by Cletrac
HG Tractors published in 1948, by Cletrac

Engine

Engine options
Hercules 2.2L 4-cyl gasoline
Hercules 1.9L 4-cyl gasoline
Hercules 2.0L 4-cyl gasoline

Engine Detail — 133 ci / 2.2 L Gasoline

Manufacturer	Hercules IXB3
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled vertical L-head
Final engine, used from 1950 on.
Displacement	133 ci 2.2 L
Bore/Stroke	3.25x4.00 inches 83 x 102 mm
Air cleaner	Vortox
Compression	6.67:1
Rated RPM	1700
Starter volts	6
Coolant capacity	12 qts (original) 11.4 L
	11 qts (late) 10.4 L

Engine Detail — 113.1 ci / 1.9 L Gasoline

Manufacturer	Hercules IXA3
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled
Original engine, used from 1939 to late 1940
Displacement	113.1 ci 1.9 L
Bore/Stroke	3.00x4.00 inches 76 x 102 mm
Rated RPM	1400

Engine Detail — 122.3 ci / 2.0 L Gasoline

Manufacturer	Hercules IXK
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled
Second engine, used from late 1940 to 1950.
Displacement	122.3 ci 2.0 L
Bore/Stroke	3.125x4.00 inches 79 x 102 mm
Rated RPM	1700
Coolant capacity	11 qts 10.4 L
Oil capacity	5 qts 4.7 L

Cletrac HG Engine

Transmission

Transmission — 3 forward and 1 reverse gear

Type	gear
Gears	3 forward and 1 reverse

Dimensions

Cletrac HG Tracks
Width	6 inches 15 cm
Length on ground	50 inches 127 cm
Area on ground	600 in² 0.4 m²

Dimensions
Length	100 inches 254 cm
Width	41.25 inches (HG-31) 104 cm
	52.25 inches (HG-42) 132 cm
	70.25 inches (HG-60) 178 cm
	78.25 inches (HG-68) 198 cm
Height (hood)	50 inches 127 cm
Gauge	31 inches 78 cm
Gauge	42 inches 106 cm
Gauge	60 inches 152 cm
Gauge	68 inches 172 cm

Cletrac HG Weight
Shipping	3125 lbs (HG-31) 1417 kg
	3163 lbs (HG-42) 1434 kg
	3226 lbs (HG-60) 1463 kg
Operating	3395 lbs (HG-31) 1539 kg
	3433 lbs (HG-42) 1557 kg
	3496 lbs (HG-60) 1585 kg

Tests

Tractor Tests
NTTL 324: 113 gasoline 3-speed crawler
NTTL 434: 133 gasoline 3-speed crawler

Nebraska Tractor Test 324
113 gasoline 3-speed crawler August 12, 1939 - August 30, 1938 Link: Nebraska Tractor Test 324 file
Belt power (max)	19.4 hp 14.5 kW
Belt fuel use (max)	2.2 gal/hour 8.3 l/hour
Drawbar performance
Max power	14.01 hp 10.4 kW
Fuel use	7.0 gal/hour 26.5 l/hour
Gear 2 used for power test.
Max pull	2800 lbs 1270 kg
Gear 1 used for pull test.

Nebraska Tractor Test 434
133 gasoline 3-speed crawler November 11 - 21, 1949 Link: Nebraska Tractor Test 434 file
Belt power (max)	25.3 hp 18.9 kW
Belt fuel use (max)	2.3 gal/hour 8.7 l/hour
Drawbar performance
Max power	21.3 hp 15.9 kW
Gear 2 used for power test.
Max pull	3940 lbs 1787 kg
Gear 1 used for pull test.

Photos

Cletrac HG

Oliver-Cletrac HG with high-clearance chassis.

Oliver-Cletrac HG with high-clearance chassis.

Oliver-Cletrac HG with high-clearance chassis.